[material request on re-order level] [fixes] if error occurs, send email to the System Manager
[event] [fix] commonified delete_events method, which is executed before auto-creation of events. Fixed delete issue
[sales order] [shipping address] allow to edit shipping address
[fix][report] in item prices
[validation][buying] stock and non-stock items are now allowed in same document
Merge pull request #495 from saurabh6790/master

[erpnext][reports][Trend Analyzer]
[trend analyzer] cleanup
to avoid merge conflict
[trends analyzer] cleanup completed